Short answer: the Soundcore Motion 300. It ranks #3 of 175 medium speakers by sound quality, rated 4.5/5, at $79.99; the Bose Soundlink Flex ranks #38, rated 3.8/5, and costs $159, so there is little reason to consider the other one.
The Soundcore Motion 300 is the better-sounding, deeper-bass option. Pretty deep bass for the small size. Its bass reaches about 50Hz before falling 10dB, against 56Hz for the Bose Soundlink Flex. Alan Ross Reviews measured it at 101dB at full volume, against 96dB for the Bose Soundlink Flex. It supports LDAC Bluetooth, which the Bose Soundlink Flex lacks. Watch for: Without the above EQ or turning the top 2 treble EQ bars to max, this speaker is very rolled off in the treble and will rank around #50 in the rankings.
The Bose Soundlink Flex is the lighter choice. IP67 rated; rugged enough to survive drops from several feet and floats. At 1.3 lbs (589 g) it weighs noticeably less than the Soundcore Motion 300 at 1.7 lbs (772 g). Watch for: Warm sounding with overly boosted bass which drowns out midrange detail.
Buy the Soundcore Motion 300. It is rated higher for sound quality than the Bose Soundlink Flex and costs less, so only choose the other one for a particular feature it does better.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Soundcore Motion 300 | Bose Soundlink Flex | |
|---|---|---|
| Price | $79.99 | $159.00 |
| Ranked | #3 of 175 in Medium Size Portable Bluetooth Speakers | #38 of 175 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Aux Input | No | No |
| Bass Extension (-10dB) | 50Hz | 56Hz |
| Battery Life | 13 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | AAC, LDAC, SBC | SBC |
| Built-in Microphone | Yes | Yes |
| EQ | Yes (9 band with adjustable frequency) | No |
| IP Rating | IPX7 | IP67 |
| Bluetooth Latency | 216ms ldac, 200ms aac, 116ms sbc | 33ms |
| Maximum SPL | 101dB (measured by Alan Ross Reviews) | 96dB (measured by Alan Ross Reviews) |
| Power Bank | No | - |
| Stereo | Yes | No |
| Omnidirectional | Pointing up | No |
| TWS | Yes | Yes |
| Weight | 1.7 lbs (772 g) | 1.3 lbs (589 g) |
| Bluetooth Version | 5.3 | 4.2 |
| Dimensions | 7.9” x 3.6” x 2” (200 x 92 x 50 mm) | 7.9” x 3.5” x 2” (201 x 90 x 52 mm) |
| Drivers | 2x 50.8mm (2”) full-range drivers + 2x passive radiators | 1x 60mm full-range driver + 2x passive radiators |
| Frequency Response | 65Hz - 40kHz (Manufacturer specified) | - |
| Power Input | USB-C | USB-C |
| Amplifier Power | 30W | - |
| Party Mode | Yes (PartyCast up to 100 speakers) | Yes (Bose Party mode) |
| Digital Aux Input | No | No |
| Strap | - | Yes (built-in loop) |
Watch Them Compared
Videos and reviews that test both speakers side by side.
- Alan Ross Reviews: Travel Speakers! Soundcore Motion 300 or Bose Flex or Tribit Stormbow Flow
- Jay’s Straight Up Reviews & More: Tribit Stormbox Flow vs Soundcore Motion 300 (LDAC) 😵 Budget Bose Soundlink Flex "Inspired" Speakers
- Oluv Patreon: Soundcore Motion 300 = Bose Soundlink Flex = Earfun UBoom L?
Related Speaker Comparisons
More worthwhile head-to-heads for Soundcore Motion 300:
- EarFun Uboom L vs Soundcore Motion 300
- Soundcore Motion 300 vs Soundcore Motion+
- Soundcore Boost “upgraded” 2021 vs Soundcore Motion 300
- Soundcore Motion 300 vs Denon Envaya DSB-250BT
- Minirig 4 vs Soundcore Motion 300
Prices on this page were last checked October 12, 2026 at 4:13 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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The Two Speakers In Full
Soundcore Motion 300: $79.99 Amazon $79.99 eBay
Older model: the Soundcore Motion+ (ranked lower, rated 4.4/5). See every Soundcore Motion generation.
Same family: the Soundcore Motion 100 (smaller model, ranked lower, rated 3.7/5), the Soundcore Motion X500 (larger model, rated 4.1/5) and the Soundcore Motion X600 (larger model, rated 4.3/5).
Pros: Pretty deep bass for the small size. Pocket size in a big pocket. Can be used in stereo facing you, or omnidirectional lying down. Ability to have a custom EQ for each orientation, standing, lying flat, hanging. Try the Uboom L EQs from Oluv for a more neutral sound. Measured bass extension of 50Hz (-10dB).
Cons: Without the above EQ or turning the top 2 treble EQ bars to max, this speaker is very rolled off in the treble and will rank around #50 in the rankings. Bassup mode is worse than Signature. Not quite as detailed or neutral as higher ranked speakers. Slight bass distortion when turned up.
Full Soundcore Motion 300 review and specifications →
| Released | Oct 2023 (3 years ago) |
|---|---|
| Amplifier Power | 30W |
| App | Yes |
| Aux Input | No |
| Bass Extension (-10dB) | 50Hz |
| Battery Life | 13 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | AAC, LDAC, SBC |
| Bluetooth Latency | 216ms ldac, 200ms aac, 116ms sbc |
| Bluetooth Version | 5.3 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 7.9” x 3.6” x 2” (200 x 92 x 50 mm) |
| Drivers | 2x 50.8mm (2”) full-range drivers + 2x passive radiators |
| EQ | Yes (9 band with adjustable frequency) |
| Frequency Response | 65Hz - 40kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Maximum SPL | 101dB (measured by Alan Ross Reviews) |
| Omnidirectional | Pointing up |
| Party Mode | Yes (PartyCast up to 100 speakers) |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 1.7 lbs (772 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Joy & Oluv’Sone: Bose Soundlink Flex 2nd gen & Soundcore Motion 300 sound test More from Oluv’Sone →
- Oluv Patreon: SoundCore Motion 300 vs VIFA Helsinki
- Oluv Patreon: (Anker) Soundcore Motion 300 - first impressions
- Oluv Patreon: Soundcore Motion 300 = Bose Soundlink Flex = Earfun UBoom L?
- Alan Ross Reviews: Travel Speakers! Soundcore Motion 300 or Bose Flex or Tribit Stormbow Flow More from alanrossreviews →
- Alan Ross Reviews: Soundcore Motion 300 or JBL Flip 6 or Soundcore Boost v2? we all have issues!
- Alan Ross - The Anti Shill!: Beats Pill (by Apple) 2024 version review vs JBL and Soundcore!
- Jay’s Straight Up Reviews & More: On A Ledge 🪟 Soundcore Motion 300 vs Tozo PA1 ⚒ Battle of the Budget Handheld Bluetooth Speakers More from JaysStraightUpReviews →
- Jay’s Straight Up Reviews & More: Tribit Stormbox Flow vs Soundcore Motion 300 (LDAC) 😵 Budget Bose Soundlink Flex "Inspired" Speakers
- Storytripper HD: Klipsch Nashville vs Harman Kardon Luna vs Soundcore Motion 300 More from storytripperhd →
- New Stuff TV 2: Sony ULT Field 1 vs JBL Flip 6, JBL Charge 5 & Soundcore Motion 300 More from NewStuffTV1 →
- Head-to-Head Comparisons
- Soundcore Motion 300 vs EarFun Uboom L
- Soundcore Motion 300 vs Soundcore Motion+
- Soundcore Motion 300 vs Soundcore Boost “upgraded” 2021
- Soundcore Motion 300 vs Denon Envaya DSB-250BT
- Soundcore Motion 300 vs Minirig 4
- Soundcore Motion 300 vs Minirig 3
- Soundcore Motion 300 vs Minirig 2
- Soundcore Motion 300 vs B&O Beosound A1
- See all 136 comparisons
Bose Soundlink Flex: $159.00 Amazon $159.00 eBay
Newer model: the Bose Soundlink Flex 2nd gen, ranked higher, rated 3.8/5, released Sep 2024. It adds adjustable EQ, AAC and aptX Adaptive. See every Bose SoundLink Flex, Micro, Max and Plus generation.
Pros: IP67 rated; rugged enough to survive drops from several feet and floats. Around 12 hours of battery at moderate volume. Measured bass extension of 56Hz (-10dB).
Cons: Not stereo. Warm sounding with overly boosted bass which drowns out midrange detail
Full Bose Soundlink Flex review and specifications →
| Released | Oct 2021 (5 years ago) |
|---|---|
| App | Yes |
| Aux Input | No |
| Bass Extension (-10dB) | 56Hz |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Latency | 33ms |
| Bluetooth Version | 4.2 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 7.9” x 3.5” x 2” (201 x 90 x 52 mm) |
| Drivers | 1x 60mm full-range driver + 2x passive radiators |
| EQ | No |
| IP Rating | IP67 |
| Maximum SPL | 96dB (measured by Alan Ross Reviews) |
| Omnidirectional | No |
| Party Mode | Yes (Bose Party mode) |
| Power Input | USB-C |
| Stereo | No |
| Strap | Yes (built-in loop) |
| TWS | Yes |
| Weight | 1.3 lbs (589 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Joy & Oluv’Sone: Bose Soundlink Flex 2nd gen vs Flex More from Oluv’Sone →
- Joy & Oluv’Sone: JBL, Bose, B&O, Sonos, Earfun, SoundCore… which portable speaker sounds best?
- Oluv Patreon: Bose Soundlink Plus & Flex compared
- Oluv Patreon: Soundcore Motion 300 = Bose Soundlink Flex = Earfun UBoom L?
- Alan Ross Reviews: Bose Soundlink Flex or Beosound A1 (1st gen) - ultimate compact speaker 😇 More from alanrossreviews →
- Alan Ross Reviews: Bose Soundlink Flex vs Minirig MK3 and Marshall Emberton - best bluetooth speaker?
- Alan Ross - The Anti Shill!: Small speaker, mighty sound, The Flex gen 2 shatters physics!
- Alan Ross Reviews: Travel Speakers! Soundcore Motion 300 or Bose Flex or Tribit Stormbow Flow
- Alan Ross Reviews: Bose Soundlink Flex Review! vs JBL Flip 6 and JBL Charge 5. Travel heaven?? 🤞
- Alan Ross Reviews: Bose Soundlink Flex vs Soundcore Boost vs Bogasing M4 - cheap or Bose?
- Alan Ross Reviews: Bose Soundlink Flex or JBL Flip 6 (eq adjusted) or Denon Envaya - best speaker for travel!
- Alan Ross Reviews: 1 million views! Best Budget Tws? Tozo Pa1 Review and sound test
- Alan Ross Reviews: Beats Pill vs Harman Luna vs Bose Flex vs Soundcore Motion Plus
- Alan Ross Reviews: Tribit Xsound Mega vs the world! (JBL Charge 5, Bose Flex, Sony XB33, LG PL7) 👍
- Alan Ross Reviews: Tribit Stormbox Flow has deeper bass than the Bose Flex but………..
- Jay’s Straight Up Reviews & More: Tribit Stormbox Flow vs Soundcore Motion 300 (LDAC) 😵 Budget Bose Soundlink Flex "Inspired" Speakers More from JaysStraightUpReviews →
- Danny Pops: BEST Bose Speaker?? Bose Soundlink Flex vs micro, Color II, and revolve + More from DannyPops →
- Danny Pops: BEST Bose Speaker? Bose is getting lazy.
- Patricio Benadon: Bose SoundLink Flex vs. Mini 2 SE. Music audio quality sound test. Listen 4 different genres!
- Head-to-Head Comparisons
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